the difference between 75% of a number and 20% of the same number is 378.4 what is 40% of the number
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Answer:
275.2
Step-by-step explanation:
Let the number be x.
75% of x = x * 75/100 = 0.75x
20% of x = x * 20/100 = 0.2x
According to the question,
0.75x - 0.2x = 378.4
⇒ 0.55x = 378.4
⇒ x = 378.4 / 0.55
⇒ x = 688
40% of 688 = 688 * 40/100 = 275.2
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